Mounting structure for water jet pump of personal watercraft

Abstract

A mounting structure for a water jet pump of a personal watercraft which includes a vertical wall 5 formed at the rear end of a water intake duct to form a pump mounting space 6, a pump bracket 8 fitted with an inlet of the water jet pump 7 and having a connecting surface 15 to sealingly connect to the vertical wall 5 . A sealant recess 15 b for accommodating a non-solid sealant S such as a silicon gel, is formed in the connecting surface 15 of the pump bracket 8, to enhance the air and water sealing quality between the connecting surfaces of the pump bracket 8 and the vertical wall 5.

What is claimed is:  
     
       1. A mounting structure for a water jet pump of a personal watercraft having a hull and a water intake duct, comprising: 
       a vertical wall formed in the hull at the rear end of the water intake duct to form a pump mounting space;  
       a pump bracket fitted with an inlet of the water jet pump mounted on the bottom of the watercraft, said pump bracket having a connecting surface to be connected to the vertical wall, said connecting surface having a sealant recess formed intermediate a peripheral connecting surface along the periphery of the connecting surface; and  
       a non-solid sealant within said sealant recess for maintaining a reliable air and water seal between the connecting surface and the vertical wall.  
     
     
       2. The mounting structure for a water jet pump of a personal watercraft according to claim  1 , wherein said sealant recess is entirely formed continuous in the connecting surface of said pump bracket. 
     
     
       3. The mounting structure for a water jet pump of a personal watercraft according to claim  1 , wherein said sealant recess surrounds threaded holes and through holes formed in the connecting surface of said pump bracket. 
     
     
       4. A mounting structure for a water jet pump of a personal watercraft having a hull and a water intake duct, comprising: 
       a vertical wall formed in the hull at the rear end of the water intake duct to form a pump mounting space;  
       a pump bracket fitted with an inlet of the water jet pump mounted on the bottom of the watercraft, said pump bracket having a connecting surface to be connected to the vertical wall, said connecting surface having a sealant recess formed intermediate a peripheral connecting surface along the periphery of the connecting surface; and  
       silicon gel sealant within said sealant recess for maintaining a reliable air and water seal between the connecting surface and the vertical wall.